diff --git a/package/mbedtls/mbedtls.hash b/package/mbedtls/mbedtls.hash
index b86c66af3e..f1be074e08 100644
--- a/package/mbedtls/mbedtls.hash
+++ b/package/mbedtls/mbedtls.hash
@@ -1,4 +1,4 @@
-# From https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.6.5:
-sha256  4a11f1777bb95bf4ad96721cac945a26e04bf19f57d905f241fe77ebeddf46d8  mbedtls-3.6.5.tar.bz2
+# From https://github.com/Mbed-TLS/mbedtls/releases/tag/mbedtls-3.6.6:
+sha256  8fb65fae8dcae5840f793c0a334860a411f884cc537ea290ce1c52bb64ca007a  mbedtls-3.6.6.tar.bz2
 # Locally calculated
 sha256  9b405ef4c89342f5eae1dd828882f931747f71001cfba7d114801039b52ad09b  LICENSE
diff --git a/package/mbedtls/mbedtls.mk b/package/mbedtls/mbedtls.mk
index c1aa9f0850..e8bb0a71b9 100644
--- a/package/mbedtls/mbedtls.mk
+++ b/package/mbedtls/mbedtls.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MBEDTLS_VERSION = 3.6.5
+MBEDTLS_VERSION = 3.6.6
 MBEDTLS_SITE = https://github.com/Mbed-TLS/mbedtls/releases/download/mbedtls-$(MBEDTLS_VERSION)
 MBEDTLS_SOURCE = mbedtls-$(MBEDTLS_VERSION).tar.bz2
 MBEDTLS_CONF_OPTS = \